pernicious is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Adjective (COMPARABLE)

Causing much harm in a subtle way.
• Synonym: deleterious, venom
Causing death or injury; deadly.
• Synonym: attery
(obsolete) swift; celeritous.

pernicious is a Scrabble valid word

pernicious

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

pernicious is an iScramble, QuickWords valid word

pernicious

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• SUPERIONIC

Same letters plus one

• PERIACINOUS
• PROSCIURINE
• SUPERCISION

Same letters minus one

• ISOPRENIC
• PRECISION
• SPURIONIC